A construction lifting device

Abstract

The present invention relates to the technical field of hanging basket equipment for outdoor use in buildings, specifically a construction lifting device, comprising a hanging basket, a safety lock, and a steel wire rope; two of the steel wire ropes pass symmetrically through both sides of the hanging basket, a motor for driving the steel wire ropes is installed in the hanging basket, the safety lock is fixed to both sides of the hanging basket by bolts, and the steel wire rope passes through the safety lock. The cleaning device comprises a base bolted to the hanging basket, a plurality of puzzle blocks are provided on the base, a cleaning block is installed on the inner surface of the puzzle block, a cleaning cloth is covered on the cleaning block, the bracket is mounted on the base by screws, a support plate is mounted on the bracket by screws, a pre-treatment component is provided on the support plate, and the pre-treatment component pre-cleans the steel wire rope and stabilizes the puzzle block. The present invention removes most of the impurities on the steel wire rope by a scraper, and then further cleans the steel wire rope by the cleaning cloth on the puzzle block, so as to solve the problem of clogging of the safety lock caused by impurities on the steel wire rope.

Description

Technical Field

[0001] The invention relates to the technical field of hanging basket equipment for exterior buildings, in particular to a building construction lifting device. Background Art

[0002] As a type of construction equipment used to carry people at height, suspended baskets (HWBs) pose significant risks during use and are a significant source of hazard on construction sites. However, HWBs have not yet been regulated as special equipment and are not covered by the "Regulations on the Safety Supervision and Management of Construction Hoisting Machinery" promulgated by the Ministry of Housing and Urban-Rural Development. The lack of unified national regulations for the safety supervision of suspended basket construction has led to a chaotic situation in the supervision of suspended basket construction sites across the country.

[0003] Due to the lack of a unified, scientific, effective, and clear construction site management method, regular inspections of suspended baskets in use on construction sites are largely absent or left unchecked, leading to the shelving of some mandatory provisions in GB19155-2003, "Suspended Baskets for Height Operations." For example, during the rental and use of suspended baskets, steel wire ropes exceeding the standard are not scrapped, and suspended basket components from different manufacturers are mixed and installed, all of which pose potential safety hazards to suspended basket construction.

[0004] According to GB19155, "Suspended Baskets for Working at Heights," and related regulations, exterior wall construction requires daily ground access. All basket components and connections must be inspected, and the basket must undergo operational tests to check the working condition of safety devices. However, this inspection method still has drawbacks: daily inspections of the working wire rope from the ground are impossible, and it's impossible to understand the wire rope's recent usage. Because the wire rope spans nearly the entire height of the building, it's susceptible to corrosion from air and rain. Furthermore, the wire rope's proximity to the building's walls allows for a lot of construction dust and impurities to adhere to the wire rope's surface. As the basket ascends or descends, these impurities increase friction between the wire rope and the motor, as well as internal friction within the wire rope, which can easily cause loosening and wire breakage. If not discovered promptly, the wire rope can break before the annual inspection date, potentially resulting in casualties during use.

[0005] Therefore, a construction lifting device is proposed. Summary of the Invention

[0006] The object of the present invention is to provide a construction lifting device, which removes most of the impurities on the wire rope by a scraper and then further cleans the wire rope by a cleaning cloth on the block, so as to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A construction lifting device, comprising:

[0009] Hanging basket, safety lock, wire rope;

[0010] The two steel ropes are symmetrically passed through both sides of the hanging basket. A motor for driving the steel ropes is installed in the hanging basket. The safety lock is fixed to both sides of the hanging basket by bolts, and the steel ropes pass through the safety lock.

[0011] Preferably, the cleaning device includes a base fixed to the hanging basket by bolts, a plurality of puzzle blocks are provided on the base, a cleaning block is installed on the inner surface of the puzzle block, a cleaning cloth is covered on the cleaning block, the bracket is installed on the base by screws, the support plate is installed on the bracket by screws, a pre-treatment component is provided on the support plate, and the pre-treatment component pre-cleans the wire rope and stabilizes the puzzle blocks.

[0012] Because the wire ropes are located close to the building walls, dust, sand, and other impurities inevitably splash onto the ropes during construction. These impurities easily become lodged in the gaps between the ropes, exacerbating wear and tear when the hanging basket ascends or descends. Furthermore, in the morning, impurities attached to the ropes react with dew, causing corrosion.

[0013] In order to reduce the friction and corrosion of impurities on the wire rope, and to prevent impurities from entering the safety lock and causing blockage when the hanging basket is working, a cleaning device is installed at the fixing point of the wire rope and the hanging basket.

[0014] Specifically, the puzzle pieces are attached and installed around the wire rope respectively, and the puzzle pieces are fixed by using the pre-treatment components. When the puzzle pieces are combined together, the shape of the combination cooperates with the wire rope. Due to the large winding angle of the wire rope, when the wire rope and the puzzle pieces move relative to each other in the vertical direction, the combined puzzle pieces will rotate. With the help of the cleaning cloth on the puzzle pieces, the dust, water and oil on the wire rope are blocked outside the safety lock to ensure that the safety lock will not be blocked or have other faults.

[0015] Before the wire rope passes through the block, most of the impurities on the wire rope are removed by the pre-treatment component. Then, the cleaning cloth on the block can mainly clean the small amount of impurities on the surface of the wire rope, reducing the number of times the cleaning cloth needs to be replaced and increasing its service life.

[0016] Compared with the common method of wiping the wire rope with a cleaning cloth in a straight up and down manner, the friction on the cleaning cloth is greater when wiping the wire rope in this way, the cleaning cloth is easily torn, and the service life is short. The present invention wipes the wire rope in a rotating manner. Since the puzzle rotates when the wire rope and the puzzle move vertically relative to each other, the cleaning cloth wipes the wire rope in a circular manner, which greatly reduces the wear of the cleaning cloth.

[0017] The cleaning cloth is industrial wiping cloth. Due to its pure texture, strong and not easy to break, it can absorb water and oil efficiently. Even if it is damaged, it will not cause harm to the wire rope.

[0018] Preferably, the pre-treatment assembly includes a sleeve fixedly mounted on the support plate, the diameter of the sleeve is larger than the combined diameter of the multiple blocks, and a cleaning ring is fixedly mounted on the upper portion of the sleeve.

[0019] Furthermore, the cleaning ring is provided with an oblique chamfer.

[0020] Furthermore, the cleaning ring includes a mounting ring mounted on the top wall of the sleeve by means of bolts, a scraper is embedded in the mounting ring, and a shell is threadedly mounted on the mounting ring.

[0021] Furthermore, the scraper is made of plastic, and its shape matches the steel wire rope. When the hanging basket rises or falls, the scraper rotates around the steel wire rope.

[0022] Furthermore, the scraper is installed in the mounting ring in a spliced ​​manner.

[0023] Furthermore, the sleeve and the blocks are made of transparent materials.

[0024] The wire rope is pre-cleaned using a cleaning ring. The scraper inside the cleaning ring works in conjunction with the wire rope. As the basket ascends or descends, the cleaning ring rotates and scrapes impurities off the wire rope. The cleaning ring has a frustum-shaped cross-section. While removing impurities from the wire rope, the ring rotates and flings them onto the inclined surface, effectively cleaning the ring.

[0025] The lower part of the sleeve covers and fixes the block to ensure that the cleaning cloth on the block exerts pressure on the wire rope.

[0026] The sleeve and the blocks are made of transparent materials, which enables workers to observe the use of the cleaning cloth more clearly. In areas with high sand content in the air, the cleaning cloth can be replaced in advance by observation to ensure the cleaning effect of the wire rope.

[0027] The cleaning ring removes impurities from the wire rope surface using a scraper embedded within it. The scraper is mounted on the mounting ring through a housing. To replace the scraper, simply remove the housing, remove the scraper, insert the new scraper into the mounting base, and replace the housing. To minimize friction between the scraper and the wire rope, the scraper is made of UHMWPE (ultra-high molecular weight polyethylene). This material is highly wear-resistant, low-density, and acid- and alkali-resistant, making it suitable for use on construction sites. It maintains its performance even under prolonged sunlight and rain, and is relatively affordable. Most importantly, its strength is lower than that of the wire rope, so friction with the wire rope will not damage it.

[0028] It should be noted that the housing and mounting ring are threaded together, and the vertical height of the housing is greater than the height of the mounting ring's threads. Therefore, even when the housing is fully screwed into the mounting ring, the housing will not squeeze the scraper blade and affect its rotation. After the housing is screwed into the mounting ring, the scraper blade still protrudes from the housing, facilitating the removal of impurities.

[0029] Preferably, a spiral block is fixedly installed in the base, the spiral block is cylindrical, the upper part of the spiral block cooperates with the wire rope, the lower part of the spiral block is provided with a fixing hole, a scraper block is installed in the fixing hole, and the scraper block is used to clean impurities in the gap of the wire rope.

[0030] Furthermore, a spring is fixedly installed in the fixing hole, and the spring is fixedly connected to the scraper block.

[0031] Furthermore, the top end of the scraper block is conical.

[0032] Furthermore, the fixing hole and the axis of the wire rope are not perpendicular to each other.

[0033] The cleaning cloth transfers impurities from the wire rope to the cleaning cloth through contact with the wire rope. During this time, some impurities will accumulate in the gaps of the wire rope. At this time, the upper part of the spiral block cooperates with the wire rope, causing the spiral block to rotate and the scraper at its bottom to scrape the impurities from the gaps of the wire rope. The top of the scraper is conical, so that when the scraper removes impurities from the wire rope, the impurities cannot stay on the scraper and fall through the outer ring.

[0034] It should be noted that since the scraping is in the form of rotation, the scraper block has already rotated before the wire rope exerts force on the scraper block, so the force exerted by the wire rope on the scraper block is only friction. Through the spring placed on the scraper block, when the scraper block is subjected to too large a reaction force from the wire rope, the reaction force is offset by compressing the spring to make the scraper block retreat.

[0035] Since the upper portion of the spiral block is aligned with the gap between the wire rope and the scraper, if the tip of the scraper directly touches the gap between the wire rope and the spiral block, the scraper will deviate from the gap when the wire rope and the spiral block are relatively displaced, causing the scraper tip to misalign with the gap. In this case, simply adjust the angle between the fixing hole and the wire rope axis so that the tip of the scraper is initially misaligned with the gap. When the wire rope and the spiral block are relatively displaced, the tip of the scraper will touch the gap.

[0036] Similarly, the scraper block can also be installed on the spiral block in a spliced ​​manner, and when the scraper block is damaged, it can be replaced in time.

[0037] Preferably, the base includes an outer ring fixedly mounted on the hanging basket, an inner ring is rotatably mounted inside the outer ring, a slide groove is provided on the top wall of the inner ring, a slider that cooperates with the slide groove is fixedly mounted on the bottom of the block, and the bracket is a retractable bracket.

[0038] Furthermore, each of the blocks is provided with protrusions at both upper and lower ends, and the cleaning block is installed between the protrusions of the blocks via magnets.

[0039] Different from the cleaning method of the scraper on the mounting base, after a long period of use, the impurities attached to the surface of the cleaning cloth will gradually increase, and the wiping effect on the wire rope will gradually decrease. At this time, the cleaning cloth needs to be replaced.

[0040] Specifically, after the basket descends to the ground, the support plate is lifted upward. A stopper protrusion on the bracket holds the bracket at the set height when the plate is raised to a certain height. The sleeve then disengages the blocks, which are then pulled out one by one along the inner ring's grooves, and the cleaning block is removed from the blocks. The cleaning cloth on the cleaning block is custom-made, with a protrusion on the rear of the block allowing it to be placed over the block without shifting when wiping the wire rope.

[0041] The upper and lower ends of the block are provided with protrusions, and the cleaning block is fixed to the inner wall of the block by magnets. In this way, the cleaning block can remain fixed when the cleaning cloth wipes the wire rope.

[0042] Preferably, the sleeve is slidably mounted on the support plate, the diameter of the lower portion of the sleeve is larger than that of the upper portion, an oblique chamfer is provided at the junction of the large diameter and the small diameter inside the sleeve, and an oblique chamfer is provided on the outer periphery of the top of the block.

[0043] Furthermore, the upper portion of the sleeve is tapered and smaller at the top and larger at the bottom.

[0044] Furthermore, balls are embedded in the chamfered corners on the periphery of the top of the puzzle block.

[0045] When the hanging basket rises, the friction between the sleeve and the wire rope is used to move the sleeve downward. At this time, the puzzle blocks located in the large diameter of the lower part of the sleeve come into contact with the small diameter of the upper part of the sleeve. Due to the oblique chamfers on the outer periphery of the top of the puzzle blocks, the puzzle blocks can easily cooperate with the small diameter of the upper part of the sleeve. Specifically, multiple puzzle blocks are continuously moved closer to the wire rope under the pressure of the upper part of the sleeve, so that the cleaning cloth on the inner wall of the puzzle blocks exerts pressure on the wire rope to achieve the wiping effect.

[0046] The cleaning cloth is a relatively strong industrial wipe, so the replaced cleaning cloth can still be used normally after re-rinsing. However, as the number of uses increases, its thickness will decrease due to wear and shrinkage. At this time, if the diameter of the upper part of the sleeve remains unchanged, the pressure exerted by the sleeve on the blocks will inevitably decrease when the basket rises, affecting the wiping effect on the wire rope. Therefore, the upper part of the sleeve is tapered, with a smaller top and a larger bottom, so that the cleaning cloth can still effectively clean the wire rope after shrinkage.

[0047] Considering that when the hanging basket rises, the upper part of the sleeve needs to press against the puzzle to exert pressure on it, affecting the normal rotation of the puzzle. To this end, the beveled corners on the top of the puzzle are embedded with balls. The rolling friction of the balls on the sleeve replaces the original sliding friction, ensuring the normal operation of the puzzle.

[0048] When the basket descends, the sleeve is subjected to the upward friction of the wire rope, and the sleeve and the base move upward relative to each other, and the upper part of the sleeve separates from the puzzle, causing the puzzle to lose its inward tightening force, thereby reducing the puzzle's cleaning effect on the wire rope.

[0049] It is understandable that during the ascent of the hanging basket, the blocks have already cleaned the wire rope once, so when the hanging basket descends, there are fewer impurities on the wire rope. At this time, the cleaning effect of the cleaning cloth on the wire rope is low, and the cleaning benefit of the cleaning cloth on the wire rope is less than the loss of the cleaning cloth itself.

[0050] It should be noted that since the diameter of the bottom of the mounting ring is larger than the diameter of the upper part of the support plate sleeve, the distance that the sleeve moves downward is fixed, ensuring that the cleaning ring is not affected by the blocks during operation. Similarly, when the hanging basket descends, since the bracket at the lower part of the sleeve is larger than the diameter of the upper part, it is ensured that the sleeve will not detach from the support plate due to friction between it and the wire rope.

[0051] The junction of the major diameter and the minor diameter of the sleeve is tapered, so that the upper part of the sleeve can better contact the piece and stably tighten it around the wire rope.

[0052] Preferably, the cleaning device is mounted on a safety lock.

[0053] The safety lock on the hanging basket is designed to lock the wire rope to stabilize the basket if the basket's descent speed exceeds a certain value, if the basket tilts, or if the working rope breaks or slackens. However, if a wire rope laden with impurities is used with the safety lock for a long period of time, these impurities can easily clog the lock's internal components, causing the safety lock to malfunction. However, if a cleaning device is directly installed on the safety lock, the wire rope is treated every time it passes through the lock, which can solve this problem.

[0054] Compared with the prior art, the present invention has the following beneficial effects:

[0055] 1. A pre-treatment component is provided. The cleaning ring pre-cleans the wire rope. The scraper inside the cleaning ring cooperates with the wire rope. When the hanging basket rises or descends, the cleaning ring rotates and scrapes impurities off the wire rope. The cross-section of the cleaning ring is frustum-shaped. While the impurities on the wire rope are being removed, the cleaning ring rotates and throws the impurities onto the inclined surface, thus achieving the effect of cleaning the impurities on the cleaning ring.

[0056] 2. By attaching and installing the puzzle pieces around the wire rope respectively and fixing the puzzle pieces with sleeves, when the puzzle pieces are combined together, the combined shape matches the wire rope. Due to the large winding angle of the wire rope, when the wire rope and the puzzle pieces move relative to each other in the vertical direction, the combined puzzle pieces will rotate. With the help of the cleaning cloth on the puzzle pieces, the dust, water and oil on the wire rope are blocked outside the safety lock, ensuring that the safety lock will not be blocked or have other faults.

[0057] 3. The upper part of the spiral block cooperates with the wire rope to rotate the spiral block, and the scraper at its bottom scrapes away impurities in the gaps of the wire rope. The top of the scraper is conical, so when the scraper removes impurities on the wire rope, the impurities cannot stay on the scraper and fall from the outer ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 It is the overall structural diagram of the present invention;

[0059] Figure 2 It is a cross-sectional view of the overall structure;

[0060] Figure 3 for Figure 2 A magnified view of the local structure at point A;

[0061] Figure 4 This is the overall structure diagram of the base;

[0062] Figure 5 is a cross-sectional view of the spiral block;

[0063] Figure 6 This is the overall structural diagram when the cleaning ring is removed;

[0064] Figure 7 It is the overall structure when the cleaning ring is installed;

[0065] Figure 8 This is a structural diagram of the mounting ring;

[0066] Figure 9 A structural diagram of the puzzle.

[0067] In the figure: 1. Wire rope; 2. Mounting ring; 3. Sleeve; 4. Support plate; 5. Bracket; 6. Outer ring; 201. Outer shell; 202. Scraper; 601. Block; 602. Inner ring; 603. Cleaning block; 604. Slider; 605. Slide; 606. Spiral block; 607. Scraper; 608. Spring; 609. Ball. DETAILED DESCRIPTION

[0068] See also Figures 1 to 9 The present invention provides a construction lifting device, and the technical solution is as follows:

[0069] A construction lifting device, comprising:

[0070] Hanging basket, safety lock, wire rope 1;

[0071] The two steel wire ropes 1 pass symmetrically through both sides of the hanging basket. A motor that cooperates with the steel wire ropes 1 is installed in the hanging basket. The safety lock is fixed to both sides of the hanging basket by bolts, and the steel wire ropes 1 pass through the safety lock.

[0072] Since the steel wire rope 1 only will be removed from the hanging basket when annual inspection or damage occurs, when the steel wire rope 1 is installed on the hanging basket, the present invention must be installed on the hanging basket together with the safety lock.

[0073] Specifically, after the outer ring 6 is screwed onto the safety lock, the spiral block 606 is installed into the outer ring 6, allowing the spiral block 606 to rotate within the outer ring 6. Next, the inner ring 602 is similarly installed within the outer ring 6, with the inner ring 602 positioned above the spiral block 606. The sleeve 3 is inserted into the support plate 4 and fixed to the bracket 5 with screws. The mounting ring 2 can be directly fixed to the top wall of the sleeve 3 by welding. The scraper 202 is inserted into the mounting ring 2, and the housing 201 is fixed to the mounting ring 2 with threads. The wire rope 1 is passed from the cleaning ring through the sleeve 3, the base, the spiral block 606, the safety lock, and the hanging basket. The block 601 can be installed last. The support plate 4 and the sleeve 3 are lifted upward. The stopper protrusions on the bracket 5 are used to maintain the bracket 5 at the set height when the support plate 4 is lifted to a certain height. At this time, the distance between the bottom surface of the sleeve 3 and the inner ring 602 is smaller than the height of the puzzle 601. The puzzle pieces 601 are installed in the slide grooves 605 opened on the inner ring 602 by using the slider 604 at the bottom of the puzzle piece 601. The position of the puzzle piece 601 is adjusted by rotating the inner ring 602 in the outer ring 6 so that all the puzzle pieces 601 are attached around the wire rope 1.

[0074] Example 1:

[0075] The working principle of the present invention is that the wire rope 1 is pre-cleaned by a cleaning ring. The scraper 202 in the cleaning ring cooperates with the wire rope 1. When the hanging basket rises or descends, the cleaning ring rotates and scrapes impurities on the wire rope 1. The cross-section of the cleaning ring is truncated cone. While the impurities on the wire rope 1 are being removed, the cleaning ring rotates and throws the impurities onto the inclined surface, thereby achieving the effect of cleaning the impurities on the cleaning ring.

[0076] When the hanging basket rises, the friction between the sleeve 3 and the wire rope 1 is used to move the sleeve 3 downward. At this time, the block 601 located in the large diameter of the lower part of the sleeve 3 contacts the small diameter of the upper part of the sleeve 3. Due to the oblique chamfer opened on the outer periphery of the top of the block 601, the block 601 can easily cooperate with the small diameter of the upper part of the sleeve 3, so that the upper block 601 of the sleeve 3 is retracted inward. Under the pressure of the upper part of the sleeve 3, the block 601 continues to move closer to the wire rope 1, so that the cleaning cloth on the inner wall of the block 601 produces pressure on the wire rope 1 to achieve the wiping effect.

[0077] After the cleaning cloth has been working for a long time, the impurities attached to the surface gradually increase, and the wiping effect on the wire rope 1 will gradually decrease. At this time, the cleaning cloth needs to be replaced. After the hanging basket is lowered to the ground, the support plate 4 is lifted upward. The bracket 5 is provided with a limit protrusion. When the support plate 4 is lifted to a certain height, the limit protrusion on the bracket 5 keeps the bracket 5 at the set height. At this time, the sleeve 3 is separated from the puzzle 601, and the puzzle 601 is pulled out along the slide 605 of the inner ring 602 in sequence, and the cleaning block 603 is removed from the puzzle 601. The cleaning cloth on the cleaning block 603 is customized. The protrusion at the rear of the cleaning block 603 allows the cleaning cloth to be placed on the cleaning block 603, and the cleaning cloth does not deviate when wiping the wire rope 1.

[0078] The cleaning cloth transfers impurities from the wire rope 1 to the cleaning cloth through contact with the wire rope 1. During this process, some impurities will accumulate in the gaps of the wire rope 1. At this time, the spiral block 606 provided at the bottom of the inner ring 602 cooperates with the wire rope 1, causing the spiral block 606 to rotate and the scraper block 607 at its bottom to scrape the impurities from the gaps of the wire rope 1. The top of the scraper block 607 is tapered, so that when the scraper block 607 removes impurities from the wire rope 1, the impurities cannot stay on the scraper block 607 and fall through the outer ring 6.

[0079] When the basket descends, sleeve 3 is subjected to the upward friction of wire rope 1, causing sleeve 3 and the base to move upward relative to each other, and the upper part of sleeve 3 is separated from block 601, causing block 601 to lose its inward tightening force, reducing the cleaning effect of block 601 on wire rope 1. This is because block 601 has already cleaned wire rope 1 once, so when the basket descends, there are fewer impurities on wire rope 1. At this time, the cleaning effect of the cleaning cloth on wire rope 1 is lower, and the cleaning benefit of the cleaning cloth on wire rope 1 is less than the loss of the cleaning cloth itself.

[0080] Example 2:

[0081] The above description is for the eastern region, where the air has a low sand content. When the hanging basket is suspended, less impurities accumulate on the wire rope 1. Piece 601 only needs to clean the wire rope 1 when the hanging basket is ascending to achieve the effect of daily maintenance and prevent the safety lock from clogging. However, when working in an environment with a high sand content in the air, such as the northwest region and areas near the desert, when the hanging basket is working at high altitude, due to the high wind speed, a large amount of sand will accumulate on the wire rope 1 in a short period of time. When the hanging basket descends, the risk of the safety lock being blocked by impurities increases. Therefore, the cleaning method for the wire rope 1 in this area can be changed to clean the wire rope 1 both when the hanging basket is ascending or descending.

[0082] Specifically, on the basis of the first embodiment, a cleaning device is provided below the motor in the hanging basket to prevent the safety lock from being blocked and the wire rope 1 from being worn.

[0083] Obviously, this solution will directly increase the cost of use and will require more time when replacing the cleaning cloth and the scraper 202. However, for workers working in such environments, it can provide an additional safeguard for their personal safety.

Claims

1. A construction lifting device comprising: Basket, safety lock, wire rope (1); Steel wire ropes (1) are installed on both sides of the hanging basket, and safety locks are fixedly installed on both sides of the hanging basket, and the steel wire ropes (1) pass through the safety locks; It is characterized by further comprising: A cleaning device is fixedly mounted on the hanging basket, and is used to clean dust, stones and impurities on the wire rope (1); The cleaning device comprises a base fixedly mounted on a hanging basket, a plurality of blocks (601) being mounted on the base, a cleaning block (603) being fixedly mounted on the inner surface of the block (601), a cleaning cloth being fixedly mounted on the surface of the cleaning block (603), a bracket (5) being fixedly mounted on the base, a support plate (4) being fixedly mounted on the top of the bracket (5), a pre-treatment component being provided on the support plate (4), and the pre-treatment component being used for pre-cleaning the steel wire rope (1) and stabilizing the blocks (601); The pre-treatment component comprises a sleeve (3) fixedly mounted on a support plate (4); the diameter of the sleeve (3) is larger than the combined diameter of the plurality of blocks (601); a cleaning ring is fixedly mounted on the upper portion of the sleeve (3); the cleaning ring comprises a mounting ring (2) fixedly mounted on the top wall of the sleeve (3); a scraper (202) is rotatably mounted in the mounting ring (2); and a housing (201) is fixedly mounted on the mounting ring (2).

2. A construction lifting device according to claim 1, characterized in that: The upper portion of the sleeve (3) is in a conical shape with a smaller upper portion and a larger lower portion.

3. A construction lifting device according to claim 1, characterized in that: A spiral block (606) is fixedly installed in the base, and the spiral block (606) is cylindrical. The upper part of the spiral block (606) cooperates with the steel wire rope (1). A fixing hole is opened in the lower part of the spiral block (606), and a scraper block (607) is installed in the fixing hole. The scraper block (607) is used to clean impurities in the gap of the steel wire rope (1).

4. A construction lifting device according to claim 3, characterized in that: A spring (608) is fixedly installed in the fixing hole, and the spring (608) is fixedly connected to the scraper (607).

5. A construction lifting device according to claim 1, characterized in that: The base comprises an outer ring (6) fixedly mounted on the hanging basket, an inner ring (602) rotatably mounted inside the outer ring (6), a slide groove (605) is provided on the top wall of the inner ring (602), a slider (604) cooperating with the slide groove (605) is fixedly mounted on the bottom of the block (601), and the bracket (5) is a retractable bracket.

6. A construction lifting device according to claim 1, characterized in that: The sleeve (3) is slidably mounted on the support plate (4); the diameter of the lower portion of the sleeve (3) is larger than that of the upper portion; an oblique chamfer is provided at the junction of the large diameter and the small diameter inside the sleeve (3); and an oblique chamfer is provided on the outer periphery of the top of the block (601).

7. A construction lifting device according to claim 2, characterized in that: The beveled corners on the periphery of the top of the block (601) are inlaid with balls (609).

8. The construction lifting device according to claim 1, characterized in that: The sleeve (3) and the block (601) are made of transparent materials.

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